Mini Excavators

308 CR VAB Mini Hydraulic Excavator

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308 CR VAB Mini Hydraulic Excavator
308 CR VAB Mini Hydraulic Excavator
US
Metric

Overview

The Cat® 308 CR Variable Angle Boom (VAB) Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications. The Variable Angle Boom provides the maximum in linkage flexibility in tight applications.

Engine

Engine Model
Cat C3.3B
Net Power
69.50 HP
51.80 kW

Weights

Operating Weight
20385.00 lb
9245.00 kg

Blade

Height
17.00 in
431.00 mm

Air Conditioning System

Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.

Blade

Width - Standard
90.60 in
2300.00 mm
Width - Wide
96.50 in
2450.00 mm

Certification - Cab

Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level II)

Dimensions - Long Stick

Boom In Reach
126.60 in
3215.00 mm
Boom Swing - Left
20.00 in
503.00 mm
Boom Swing - Right
38.00 in
963.00 mm
Cab Height
99.20 in
2520.00 mm
Dig Depth
182.80 in
4644.00 mm
Ground Clearance
13.70 in
349.00 mm
Maximum Blade Depth
16.10 in
408.00 mm
Maximum Blade Height
14.50 in
369.00 mm
Maximum Dig Height
277.10 in
7038.00 mm
Maximum Dump Clearance
199.60 in
5071.00 mm
Maximum Reach
300.70 in
7637.00 mm
Maximum Reach - Ground Level
293.70 in
7461.00 mm
O/A Shipping Length
262.00 in
6656.00 mm
O/A Track Width
90.60 in
2300.00 mm
O/A Undercarriage Length
113.90 in
2892.00 mm
Stick Length
92.80 in
2358.00 mm
Swing Bearing - Height
28.90 in
735.00 mm
Tail Swing with Counterweight
64.80 in
1645.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm
Transport Height
99.30 in
2522.00 mm
Vertical Wall
134.10 in
3405.00 mm

Dimensions - Standard Stick

Boom In Reach
120.40 in
3059.00 mm
Boom Swing - Left
20.00 in
503.00 mm
Boom Swing - Right
38.00 in
963.00 mm
Cab Height
99.20 in
2520.00 mm
Dig Depth
161.80 in
4109.00 mm
Ground Clearance
13.70 in
349.00 mm
Maximum Blade Depth
16.10 in
408.00 mm
Maximum Blade Height
14.50 in
369.00 mm
Maximum Dig Height
265.20 in
6735.00 mm
Maximum Dump Clearance
187.40 in
4759.00 mm
Maximum Reach
281.10 in
7141.00 mm
Maximum Reach - Ground Level
273.60 in
6949.00 mm
O/A Shipping Length
258.70 in
6571.00 mm
O/A Track Width
90.60 in
2300.00 mm
O/A Undercarriage Length
113.90 in
2892.00 mm
Stick Length
71.80 in
1823.00 mm
Swing Bearing - Height
28.90 in
735.00 mm
Tail Swing with Counterweight
64.80 in
1645.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm
Transport Height
97.90 in
2487.00 mm
Vertical Wall
117.80 in
2992.00 mm

Dimensions - VAB In

Boom Swing Left
24.00 in
605.00 mm
Boom Swing Right
37.00 in
935.00 mm
Boom in Reach
122.80 in
3120.00 mm
Cab Height
100.00 in
2541.00 mm
Dig Depth
150.20 in
3815.00 mm
Ground Clearance
13.80 in
350.00 mm
Maximum Blade Depth
16.00 in
407.00 mm
Maximum Blade Height
14.60 in
370.00 mm
Maximum Dig Height
205.50 in
5220.00 mm
Maximum Dump Clearance
135.80 in
3450.00 mm
Maximum Reach
256.50 in
6515.00 mm
Maximum Reach at Ground Level
248.00 in
6300.00 mm
Overall Shipping Length
253.90 in
6450.00 mm
Overall Track Width
90.60 in
2300.00 mm
Overall Undercarriage Length
113.40 in
2880.00 mm
Stick Length
71.70 in
1820.00 mm
Swing Bearing Height
29.80 in
756.00 mm
Tail Swing with Counterweight
62.40 in
1585.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm
Transport Height
97.40 in
2475.00 mm
Vertical Wall
99.20 in
2520.00 mm

Dimensions - VAB Out

Boom Swing Left
24.00 in
605.00 mm
Boom Swing Right
37.00 in
935.00 mm
Boom in Reach
106.70 in
2710.00 mm
Cab Height
100.00 in
2541.00 mm
Dig Depth
136.20 in
3460.00 mm
Ground Clearance
13.80 in
350.00 mm
Maximum Blade Depth
16.00 in
407.00 mm
Maximum Blade Height
14.60 in
370.00 mm
Maximum Dig Height
322.00 in
8180.00 mm
Maximum Dump Clearance
247.40 in
6285.00 mm
Maximum Reach
310.40 in
7885.00 mm
Maximum Reach at Ground Level
303.70 in
7715.00 mm
Overall Shipping Length
253.90 in
6450.00 mm
Overall Track Width
90.60 in
2300.00 mm
Overall Undercarriage Length
113.40 in
2880.00 mm
Stick Length
71.70 in
1820.00 mm
Swing Bearing Height
29.80 in
756.00 mm
Tail Swing with Counterweight
62.40 in
1585.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm
Transport Height
97.40 in
2475.00 mm
Vertical Wall
146.70 in
3725.00 mm

Engine

Bore
3.70 in
94.00 mm
Displacement
203.00 in³
3.33 l
Gross Power - ISO 14396
74.30 HP
55.40 kW
Rated Net Power - 2,200 rpm - EU Stage V - ISO 9249/EEC 80/1269
71.50 HP
53.30 kW
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final - ISO 9249/EEC 80/1269
70.30 HP
52.40 kW
Stroke
4.70 in
120.00 mm

Hydraulic System

Auxiliary Circuit - Primary - Flow
35.00 gal/min
131.00 l/min
Auxiliary Circuit - Primary - Pressure
4134.00 psi
285.00 bar
Auxiliary Circuit - Secondary - Flow
9.00 gal/min
33.00 l/min
Auxiliary Circuit - Secondary - Pressure
4134.00 psi
285.00 bar
Digging Force - Bucket
13946.00 lbf
62.00 kN
Digging Force - Stick - Long
8032.00 lb
35.70 kN
Digging Force - Stick - Standard
9509.00 lbf
42.30 kN
Operating Pressure - Equipment
4134.00 psi
285.00 bar
Operating Pressure - Swing
3626.00 psi
250.00 bar
Operating Pressure - Travel
4134.00 psi
285.00 bar
Pump Flow at 2,400 rpm
44.00 gal/min
167.00 l/min
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump

Service Refill Capacities

Cooling System
2.60 gal (US)
10.00 l
Engine Oil
3.00 gal (US)
11.20 l
Fuel Tank
39.00 gal (US)
147.00 l
Hydraulic System
29.00 gal (US)
110.00 l
Hydraulic Tank
14.00 gal (US)
53.00 l

Sound

Average Exterior Sound Pressure (ISO 6395:2008)
99.00 dB(A)
99.00 dB(A)
Note
European Union Directive "2000/14/EC"
Operator Sound Pressure (ISO 6396:2008)
72.00 dB(A)
72.00 dB(A)

Swing System

Machine Swing Speed
10.60 r/min
10.60 r/min

Travel System

Gradeability - Maximum
30 degrees
Ground Pressure - Maximum Weight
5.90 psi
40.60 kPa
Ground Pressure - Minimum Weight
5.50 psi
37.90 kPa
Maximum Traction Force - High Speed
6250.00 lbf
27.80 kN
Maximum Traction Force - Low Speed
15175.00 lbf
67.50 kN
Travel Speed - High
3.20 mile/h
5.10 km/h
Travel Speed - Low
1.90 mile/h
3.10 km/h

Weight Increase from Minimum Configuration

Counterweight
552.00 lb
250.00 kg
Long Stick
146.00 lb
66.00 kg
Steel Tracks with Pads
752.00 lb
341.00 kg

Weights

Maximum Operating Weight with Cab*
20906.00 lb
9483.00 kg
Maximum Operating Weight with Cab**
20678.00 lb
9380.00 kg
Minimum Operating Weight with Cab*
17960.00 lb
8146.00 kg
Note
*Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (1)
*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, blade, and no bucket.
Note (2)
**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, blade, and no bucket.

Engine

Note
Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan.
Gross Power - SAE J1995
74.30 HP
55.40 kW
Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC
69.50 HP
51.80 kW
Engine Model - U.S. EPA Tier 4 Final/EU Stage V
Cat® C3.3B

Weights

Minimum Operating Weight with Short Stick*
19161.00 lb
8690.00 kg
Maximum Operating Weight with Standard Stick**
20385.00 lb
9245.00 kg
Minimum Operating Weight with Standard Stick*
19084.00 lb
8655.00 kg
Maximum Operating Weight with Short Stick**
20462.00 lb
9280.00 kg

Weight Increase from Minimum Configuration

Note
*Short stick weight exceeds standard stick weight due to its heavy duty design.
Short Stick*
77.00 lb
35.00 kg

Hydraulic System

Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Primary - Pressure at Pump
4134.00 psi
285.00 bar
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
4134.00 psi
285.00 bar
Maximum Auxiliary Circuit - Primary - Flow at Pump
35.00 gal/min
131.00 l/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump
9.00 gal/min
33.00 l/min
Digging Force - Stick (Short)
9217.00 lbf
41.00 kN

Swing System

Boom Swing - Right
50 degrees
Boom Swing - Left
60 degrees

Certification - Cab and Canopy

Roll Over Protective Structure (ROPS)
ISO 12117-2:2008
Tip Over Protective Structure (TOPS)
ISO 12117:1997
Top Guard
ISO 10262:1998 (Level II)

Dimensions - Short Stick - VAB In

Maximum Dig Height
208.70 in
5300.00 mm
Boom Swing Left
24.00 in
605.00 mm
Maximum Blade Height
14.60 in
370.00 mm
Maximum Dump Clearance
138.20 in
3510.00 mm
Tail Swing with Counterweight
62.40 in
1585.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Maximum Reach at Ground Level
244.50 in
6210.00 mm
Transport Height
91.70 in
2330.00 mm
Boom Swing Right
37.00 in
935.00 mm
Stick Length
65.60 in
1665.00 mm
Overall Track Width
90.60 in
2300.00 mm
Vertical Wall
95.90 in
2435.00 mm
Overall Shipping Length
253.50 in
6440.00 mm
Dig Depth
145.70 in
3700.00 mm
Ground Clearance
13.80 in
350.00 mm
Overall Undercarriage Length
113.40 in
2880.00 mm
Swing Bearing Height
29.80 in
756.00 mm
Maximum Reach
253.10 in
6430.00 mm
Boom in Reach
122.40 in
3110.00 mm
Maximum Blade Depth
16.00 in
407.00 mm
Cab Height
100.00 in
2541.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm

Dimensions - Short Stick - VAB Out

Maximum Reach
305.10 in
7750.00 mm
Swing Bearing Height
29.80 in
756.00 mm
Maximum Dig Height
316.70 in
8045.00 mm
Maximum Reach at Ground Level
298.20 in
7575.00 mm
Maximum Blade Depth
16.00 in
407.00 mm
Overall Shipping Length
253.50 in
6440.00 mm
Boom in Reach
96.90 in
2460.00 mm
Vertical Wall
138.20 in
3510.00 mm
Maximum Dump Clearance
242.50 in
6160.00 mm
Overall Track Width
90.60 in
2300.00 mm
Tail Swing without Counterweight
57.10 in
1450.00 mm
Boom Swing Right
37.00 in
935.00 mm
Cab Height
100.00 in
2541.00 mm
Overall Undercarriage Length
113.40 in
2880.00 mm
Ground Clearance
13.80 in
350.00 mm
Track Belt/Shoe Width
17.70 in
450.00 mm
Stick Length
65.60 in
1665.00 mm
Transport Height
91.70 in
2330.00 mm
Boom Swing Left
24.00 in
605.00 mm
Tail Swing with Counterweight
62.40 in
1585.00 mm
Maximum Blade Height
14.60 in
370.00 mm
Dig Depth
130.10 in
3305.00 mm

Sustainability

Recyclability
96%
Features

ALL DAY COMFORT

  • A sealed and pressurized cab is equipped with an improved air conditioning system, adjustable wrist rests and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE

  • Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls with a push of a button. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A MINI DESIGN

  • Increased lifting, swinging, travel and multi-functioning performance help you get the job done more efficiently, and dig-to-blade allows for easy clean up.

SAFETY ON THE JOB SITE

  • Your safety is our top priority. The Cat Mini Excavator is designed to help keep you safe on the job. A back-up camera, courtesy work lights and a fluorescent retractable seat belt are just a few of the safety features we‚Äôve built into the machine.

SIMPLE SERVICE FOR LESS DOWNTIME

  • Maintenance is quick and easy on the Cat Mini Excavator. Routine check points are easy to access at ground level with grouped service points and robust service panels.

LOWER OPERATING COSTS

  • Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat Mini Excavator was designed with reducing your operating costs in mind.

UNMATCHED DEALER SUPPORT

  • Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

SUSTAINABILITY

  • The Cat® C3.3B engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
  • Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
  • Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
  • Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
  • Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
  • The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
  • Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
  • Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
  • Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)
  • Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (if equipped).
*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)
Standard Equipment
  • ENGINE
    • Cat C3.3 Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
    • Automatic Engine Idle
    • Automatic Engine Shutdown
    • Automatic Swing Brake
    • Automatic Two Speed Travel
    • Fuel Water Separator with Indicator
    • Radial Seal – Double Element Air Filter
    • Extended Life Coolant, –37° C ( –35° F)
    • Ecology Drain
  • HYDRAULICS
    • Smart Tech Electronic Pump
    • Electronic Variable Displacement Piston Pump
    • Load Sensing/Flow Sharing Hydraulics
    • Power On Demand
    • Hydraulic Temperature Monitoring
    • Certified Accumulator
    • HYDO Advanced Hydraulic Oil
  • OPERATOR ENVIRONMENT
    • Top Guard ISO 10262 1998 Level I
    • ROPS ISO 12117-2:2008
    • Sealed and Pressurized Cab
    • Stick Steer Mode
    • Travel Cruise Control
    • Control Pattern Changer
    • Adjustable Wrist Rests
    • Molded Footrests
    • Removable, Washable Floor Mat
    • Travel Pedals and Hand Levers
    • Cat Key with Passcode Option
    • HVAC with Automatic Temperature Control
    • Hydraulic Lockout Controls
    • Integrated Lower Front Window
    • Assisted Front Window Overhead Storage
    • Rear Window Emergency Exit
    • Fabric, High Back, Suspension Seat
    • Retractable Seat Belt (75 mm/3 in)
    • Coat Hook
    • Cup Holder
    • LED Interior Light
    • Literature Holder
    • Mounting Bosses for Top and Front Guards
    • 12V Power Socket
    • Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
    • Skylight
    • Signaling/Warning Horn
    • Cab and (left side) Boom Work Lights
    • Utility Space for Mobile Phone
    • Next Generation Color LCD Monitor (IP66)
      – Jog Dial Interface
      – Fuel Level and Coolant Temperature Gauges
      – Maintenance and Machine Monitoring
      – Performance and Machine Adjustments
      – Numeric Security Code
      – Multiple Languages
      – Camera Ready (IP68 & IP69K)
      – Hour Meter with Wake Up Switch
  • UNDERCARRIAGE
    • Greased and Lubricated Track
    • Hydraulic Track Adjusters
    • Tie Down Eyes on Track Frame
    • Dozer Blade
    • Dozer Float
    • Bolt-on, Reversible Wear Edge
  • BOOM, STICK AND LINKAGES
    • Variable Angle Boom
    • Standard Stick (1820 mm/71.7 in)
    • Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
    • Thumb Ready (not available in all regions)
  • ELECTRICAL
    • 12 Volt Electrical System
    • 60 Ampere Alternator
    • Circuit Breaker
    • 900 CCA Maintenance Free Battery
    • Battery Disconnect
    • Ignition Key Stop Switch
  • OTHER
    • Locks on External Enclosure Doors
    • Lockable Fuel Cap
    • Beacon Socket
    • Rear Reflectors
Optional Equipment
  • OPERATOR ENVIRONMENT
    • Push to Start with Bluetooth® Key
    • Air Suspension Heated Seat
    • Rain Visor
    • Next Generation Advanced Monitor (below are all included with Next Generation Advanced Monitor option)
      – Touch Screen
      – Site Reference System
      – High Definition Camera Capable (IP68 & IP69K)
      – Numeric Security Code
  • UNDERCARRIAGE
    • Wide Dozer Blade
    • Steel Tracks (450 mm/17.7 in wide)
    • Wide Steel Tracks (600 mm/23.6 in)
    • Steel Track with Rubber Pads
    • Track Guides
  • BOOM, STICK AND LINKAGES
    • Attachments including Buckets, Augers and Hammers
    • 2nd Auxiliary Hydraulic Lines
    • Boom Lowering Check Valve
    • Stick Lowering Check Valve
    • Certified Lifting Eye
  • ELECTRICAL
    • Product Link Elite (regulations apply)
    • Travel Alarm
    • Rearview Camera
    • Rotating Beacon
  • GUARDING
    • Mesh Front Guard ISO 10262 1998 Level I
    • Heavy Duty Front Guard ISO 10262 1998 Level II
    • Overhead Cab Guard ISO 10262 1998 Level II
    • Polycarbonate Front Window EN356 P5A
    • Track Guards
  • OTHER
    • Additional Counterweight
    • Water Jacket Heater
    • Refueling Pump